What question did this study set out to answer?

Identify the microphysical and dynamical mechanisms that enable supercooled liquid water to persist in mixed-phase clouds by evaluating multiple numerical models against laboratory cloud chamber experiments.

September 1, 2026Journal of Advances in Modeling Earth SystemsOpen Access

A Model Intercomparison Study of Mixed‐Phase Clouds in a Laboratory Chamber

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Implication

Model intercomparison study reveals persistent supercooled liquid water in simulated mixed-phase clouds, highlighting the critical role of spatial heterogeneity and local mixing.

Key Points

Identify the microphysical and dynamical mechanisms that enable supercooled liquid water to persist in mixed-phase clouds by evaluating multiple numerical models against laboratory cloud chamber experiments.
Compared 10 numerical model configurations simulating cloudy Rayleigh-Bénard convection against experimental observations from the Michigan Technological University Pi Cloud Chamber.
Calibrated models to reproduce an observed steady-state liquid cloud, excluded ice-nucleating particles, assumed spherical ice crystal geometries, and injected ice at varying rates using both Eulerian bin and Lagrangian microphysics schemes.
Full-domain models consistently sustained liquid droplets throughout simulations because persistent supersaturation near the chamber floor continuously activated new droplets, offsetting droplet evaporation within the core.
Models assuming a well-mixed domain, omitting near-wall regions, or using coarse spatial resolutions failed to sustain droplets and experienced complete cloud glaciation.
Lagrangian microphysics schemes captured broader particle-level supersaturation variability than Eulerian bin approaches, confirming high sensitivity to spatial mixing.

Cite This Study

A 2026 study studied this question.

synapsesocial.com/papers/6aa920b1669f42ee3902c042 https://doi.org/10.1029/2025ms005648

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Implication

Model intercomparison study reveals persistent supercooled liquid water in simulated mixed-phase clouds, highlighting the critical role of spatial heterogeneity and local mixing.

A Model Intercomparison Study of Mixed‐Phase Clouds in a Laboratory Chamber

Discussion

Member takes

Implication

Key Points

Cite This Study

A Model Intercomparison Study of Mixed‐Phase Clouds in a Laboratory Chamber

Discussion

Member takes

Implication

Key Points

Cite This Study

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